Bed davenport



Ju y 1929- o. STOLTENBERG BED DAVENPORT Filed July 25, 1927 3Sheets-Sheet l m n We 0/: yd/Mk Ju y 1929- o. STOLTENBERG BED DAVENPORTFiled July 25, 1927 3 Sheets-Sheet 2 gmnmtdc 0%? 5/0/790591'? w J ly1929- o. STOLTENBERG BED DAVENPORT Filed July 25, 1927 3 Sheets-Sheetgwuentoc attoz nu Patented July 23, 1929.

UNITED STATES PATENT OFFICE.

OLE STOLTENBERG, OF TACOMA, WASHINGTON.

BED DAVENPORT.

Application filed July 7 25,

This invention relates to davenports and especially to that classthereof which are adapted to be extended to form a bed.

The objects of the invention are, first, to provide such a bed davenportwhich is as strong in its framing as the usual davenport; second, toprovide such a davenport which is, in no way, distinguishable inappearance from the usual davenport; third, to provide means whereby thespring parts of the davenport bed lie in the same plane with and arealternated with the corresponding parts of the fixed portion of thedavenport; fourth, to pro vide means for bridging the space between thespring portions of the bed extension; lifth, to provide means forbridging the space between the spring parts of the fixed portion of thedaven port, when the bed part thereof is extended; sixth, to provideimproved guiding means bet-ween the fixed part and the extension wherebythe motion of the extension is controlled and whereby it is preventedfrom binding, even if it is pulled or pushed from one of its corners;and seventh, to provide means adapted to hold the bed portion inextended position until it is desired to return it to its normal orclosed position. A further object is to provide a n'ieans for mountingthe springs of the davenport and its extension, whereby they formintegral groups or cushions. Another object is to provide automatic legsfor the bed extension whereby, when the bed is in extended position, thelegs automatically assume a supporting position and whereby, when thebed is being returned to its closed position, the said legs arewithdrawn and stowed away automatically. A further object is to providea bed davenport which 'is simple and economical to manufacture, easy tooperate, and which provides ample spring supporteit-her as a springmattress for the bed or as a spring seat for the davenport.

I attain these and other objects by the devices, mechanisms, andarrangements illustrated in the accompanying drawings, in which- Fig. 1is a front elevation of the bed davenport, in its closed position; Fig.2 is a side elevation of a portion of the end of the extension frame andthe supporting fixed frame, in extended position, to illustrate theautomatic latch between the parts; Fig. 3 is a cross-section of the rearcanvas apron roll, showing it in partly extended position and inrelation to two adjacent spring e' ilshions Fig.

1927. Serial No. 208,200.

4 is a perspective view of the central portion of the davenport, showingthe bed portion partly extended and illustrating the means for guidingthe extension frame on the fixed frame; Fig. 5 is a perspective view ofthe bed davenport in extended position, with all the upholstery removedand showing a portion of the rear canvas apron and roller broken away toreveal the arrangementof the spring cushions thereunder; Fig. 6 is asimilar View thereof, showing the parts in closed position; Fig. 7 is aside elevation of the automatic leg for the bed portion, in operativeposition; Fig. 8 is a similar View thereof, showing it in stowedposition; Fig. 9 is a perspective view of a part of one of the springcushions, showing one spring only therein, to illustrate itsconstruction; Figs. 10 and 11 are cross-sections of the bed davenport inclosed and extended positions, respectively, the upholstery thereofbeing shown in outline by broken lines.

Similar numerals of reference refer to similar parts throughout theseveral views.

The fixed portion of my improved bed davenport is made with a framewhich is very similar to the usual construction of a davenportineapableoi' extension andisin every way as strong thereas. This framecomprises a front lower rail 1, supported on three front legs 2; aparallel rear lower rail 3, supported on two legs 4, which extend upwardto form the ends 5 of the back framing, indicated by the parts 6extending between the said end posts 5 together with two side or endframes, formed of the lower horizontal rails 7, joining the abovedescribed front rail 1 with the rear rail 3, the front arm posts 8 andthe arm frame rails 9, joining the posts 5 and 8. Besides the above,there is a central rail 10, positioned at a lower level than the rails land 3, to which it is secured, and forming a guide for the bedextension, as hereinafter described. The fixed frame is also providedwith means for supporting the fixed portion of the spring seat and bed.The lower rear rail 3 of the fixed frame is best illustrated in Figs. 4,10 and 11, that form shown in Figs. 5 and 6 being a variation thereof.The lower rail 3 is preferably provided with a rabbet 11 extending fromend to end thereof and positioned on a level with the upper side of thefront rail. 1. A series of parallel spring cushion-supporting slats 12are secured in said rahbet 11. and extend. therefrom to the frontrail 1. on which they restand to which they are suitably secured. Theseslats 12 are spaced apart a sufficient distance to permit a similarseries of slats on the bed extension to lie between them as hereinafterdescribet.

The bed or extension frame comprises a rear rail 13, positioned on thesame level the above-described front rail 1 of the fixed frame, andlying above the above-described central rail 10; with two end rails 14and a front rail 15. The level of the front rail 15 is above the uppersurface of the front lixed rail 1, as clearly seen in Figs. 8 and 10.The extension frame is also provided with a central rail 16, extendingfrom the rear rail 13 to the front rail 15, and lying inunediately abovethe level of the fixed front rail 1 (Fig. 4:). This extension frame isalso provided with a series of parallel spring cushion-supporting slats17, secured to the front and rear rails 15 and 13 thereof, and lyingbetween the slats 12 of the fixed frame, as above described.

The extension frame is supported, at its rear, by the fixed frame,especially at the ends and center by the rails 7 and, 10, and at itsfront, by means of two retractable legs, illustrated in Figs. 7 and 8.These logs comprise suitably shaped bodies 18, pivoted at 19 to the endrails 14 ofthe bed extension, near the "rent thereof, and each havingtheir upper surfaces curved substantially as shown in the drawings, anda helical spring 20. one end of which is secured to the uppcrpart of theleg, above the pivot 19 and the other end of which is secured to thesaid rail 141-, said Sl ')l'l11g being always under tension. Thus, whenthere is nothing to hold the lower end of the leg 18 up, the spring 20turns it on its pivot 19 and brings its lower end down into contact withthe floor. A stop 21 is provided in such posi tion as to limit themotion of said leg to such vertical position. When, however, theextension frame is moved rearward to close it, the leg 18 first slidesalong the floor and then engages the front rail 1 of the fixed. frame,at a point below the pivot 19, and is thus turned thereby on its pivotinto its retracted position, as shown in Fig. 8, against the action ofthe spring 20. The leg 18 remains in this position, resting on top ofthe front rail 1, until the extension frame is drawn out again, when itagain turns vertical as soon as it is removed from contactwith the saidfront rail 1 of the fixed frame.

I prefer to place metal gliders 22 between the several moving parts inorder to cause a free and smooth motion therebetween, with but littlefriction. In Fig. 2 I have shown a glider 22 mounted on the upper sideof the fixed supporting end rail 7, at the front end thereof, and asimilar glider 22, in reversed position, on the lower side of the rearend of the end rail 14: of the extension frame. Also, in said view, itwill be seen that I have provided notches 23 in the said several parts 7and 14, adapted to receive the gliders 22 of the other part when theextension frame is at its extended position, said notches 23 bein quiteshallow in depth and with an easy incline. These notches, cooperatingwith the said gliders 22, tend to hold or latch the extension frame inits extended position. However, when it is desired to close the framefrom its extended position, it is only necessary to raise slightlythereon or, indeed, to push inward thereon with sufficient force tocause the said gliders to slide up out of the said notches 23, and theextension frame will then slide easily and smoothly back into its closedposition.

Referring now particularly to Fig. 1 of the drawings, wherein the meansfor guiding the movement of the extension frame on the fixed frame isillustrated, it will be seen that the central guide rail 16 of theextension frame liesimmediately over the coresponding guide rail 10 ofthe fixed frame. The front rail 1, of the fixed frame, is provided withtwo guiding flanges 24L which extend upward therefrom and which engagethe two sides of the said extension guide rail 16. Also the roar rail 13and the rear end of the said guide rail 16, of the extension frame, areprovided with guiding lugs or flanges 25, which extend downwardtherefrom and which engage the two sides of the said fixed guide rail10. Thus it will be seen that the extension frame is guided at itscenter by the interaction of the guiding lugs 2% and 25 on therespective guiding rails 16 and 10, and that they prevent any jamming ofthe extension frame in relation to the fixed frame as they engage therespective parts at well separated positions.

Referring now to F ig. 9 of the drawings, in which I have particularlyillustrated the construction of one of the spring cushions which form animportant part of my invention. This springcushion consists of arectangular casing of fabric in which the series of springs for the seator bed are mounted, and which forms a long spring body, flexible in alldirections, which groups the set of springs therein into an alinedspring cushion, which is self-contained and which is of reasonablestiffness longitudinally thereof. Each cushion, then, comprises one ofthe above described slats 12 on which are fastened a row or series ofhelical springs 26, and to which the fabric container 27 is secured.This cushion. then, consists of a fabric box, extending substantiallythe length of the slat on which itis formed, and enclosing a group ofsprings 26, said springs being under an initial compression, and beingsecured to the said fabric box at convenient points therein. In practiceI prefer to form the springs 26 with rectangular upper and lower coilsor loops, as shown in Fig. 9, so that two adjacent springs will havetheir upper and lower coils close together and they may be fastened tothe supporting LOO 12, or to the fabric 27 at the same place, and sothat the said rectangular upper coils will shape the fabric box 27 withsubstantially straight upper edges. Thus it will be seen that each slat12 is provided with a spring cushion of rectangular form, whose sidesare in tension under the action of the springs contained therein.

It will be seen by the drawings, as Figs. 5 and G, that there are twosets of these spring cushions, the cushions 28 being mounted on theslats 12 of the fixed frame, and the simi lar cushions 29 which aremounted on the slats 17 of the extension frame and that, when thedm'enport is closed (Figs. 1, 6 and 10), these two series of cushions 28and 29 alternate in position to form the spring seat thereof and, whenit is extended, each set of spring cushions 28 and 29 form a portion ofthe bed thus formed.

The fabric spring cushions29, which are mounted on the slats 17 of thebed extension frame, are elevated very slightly above the springcushions 28 on the slats 12, of the fixed frame, as clearly shown inFigs. 3, 5, 6, 10 and 11. All the said spring cushions 29 of theextension frame are secured together by means of two, or more, flexibleconnections such as wires 30, which are secured thereto and whichstretch across and bridge the tops of all the said series of springcushions 29, and which are secured to the end rails 14 of the extensionframe through the interposition of coiled springs 31. Thus, althougheachsaid spring cushion 29 is fairly rigid or sti'tt' longitudinally, onaccount of the fact that the springs are alined in that direction, theyare stiffened transversely of the said slats by being connected togetherby the said wires 30. Since the said spring cushions 29 are higher thanthose on the fixed frame, it is evident that the said bracing wires 30pass over the tops of the said other spring cushions 28 on the fixedframe. However, the said lower spring cushions 28, 011 the fixed frame,are also attached together along their rear upper edges by means of thewire 32 (Figs. 3, 5, 10 and 11) which is stretched between the ends ofthe fixed frame, and which has a spring connection thereto, not shown.

lVhen the davenport is closed, therefore, the spring cushions 29, of theextension frame, are alternated with the spring cushions 28, of thefixed frame. The two sets of spring cushions are not in any way attachedtogether but each set is secured together into a single resilientstructure, as above described. The one resilient structure isinterpositioned in the other resilient structm'e. Thus the whole seatformed by the alternating spring cushions 28 and 29 forms a stiff springbody of great resiliency.

A roller 33 is mounted in the rear framing of the fixed portion of theclavenport, at a point below the spring cushions forming the backthereof, said roller having an internal torsion spring 34 (Fig. 3)mounted therein and tending to resist its rotation in an unwindingdirection, as hereinafter outlined. An apron 35 is rolled on the saidroller 33 and is attached thereto at its inner end and to the rear upperedges of all the spring cushions 29, of the extension frame, at itsouter end. This apron is made of heavy fabric, such as canvas. lVires 36are secured to said canvas apron 35, on'e such wire being positioned atthe outer edge thereof and to the several spring cushions 29, the otherwires 36 being parallel therewith and spaced at short intervals apart,all said wires being parallel to the axis of said roller 33 and atright-angles to the axes of the several spring cushions forming thedavenport. lVhen the extension frame is drawn outward, the springcushions 29 pull the canvas apron 35 and unwind it from the roller 33,against the action of the spring 34-. therein, and said canvas apronslides over the fixed spring cushions 28, as the extension movesoutward, said apron and its wires 36 bridging across said fixed cushionsand therefore reenforcing them laterally and distributing the weightapplied thereto among the several cushions 28. The spring 34: alwaystends to draw said extension frame inward and it is held outward by theabove described latch formed by the gliders 22 and the notches 23. WVhenthe extension frame is returned into its closed position, by beingpushed inward manually and by the action of said spring 34, the saidapron 35'is removed from over the cushions 28 and is rolled on theroller 33, under the action of said spring 3-4. Having, therefore,described my invention,

what I claim is 1. A bed davenport comprising a fixed frame; springcushions mounted on sa d fixed frame in spaced relation to each other;an extension frame, supported and guided by said fixed frame; springcushions, similar to said first spring cushions, mounted on saidextension frame in spaced relation to each other and positioned toalternate with the said first spring cushions, said second springcushions being higher than the first spring cushions; a wire securingall said second spring cushions together and to said extension frame andlying above the level of said first spring cushions; a roller mounted onthe rear of said fixed frame; and a fabric apron mounted on said rollerand secured at its other and positioned to alternate with the said firstspring cushions; means securing all said second spring cushions togetherand to said extension frame, and lying above the level of said firstspring cushions; and a fabric apron secured to the inner ends of saidsecond spring cushions and adapted to lie on said first spring cushions;together with means for drawing said fabric apron from over said firstspring cushions when said extension frame is in its closed position.

3. A beddavenport comprising a fixed frame; spring cushions mounted onsaid fixed frame in spaced relation to each other; an extension frame,supported and guided by said fixed frame; spring cushions, similar tosaid first spring cushions, mounted on said extension frame in spacedrelation to each other and positioned to alternate with the first springcushions, said second spring cushions being higher than the first springcushions; means securing the tops of all said second spring cushionstogether and hric ing the space therebetween, and lying above the levelof said first spring cushions; and means lying over said first springcushions and bridging the space therel'ietween when said extension frameis in extended. position.

i. A bed da'venport coniprising a fixed frame; spring cushions mountedon said fixed frame in spaced relation to each other; an extensionframe, supported and guided by said fixed frame; spring cushions,similar to said first spring cushions, mounted on said extension framein spaced relation to each other and positioned to alternate with thefirst spring cushions, said second spring cushions being higher than thefirst spring cushions; and means seeming the tops of all said secondspring cushions together and to said extension frame, and bridging thespace therebetween, and lying above the level of said first springcushions and adapted to slide thereover when the extension frame is inclosed position.

5. A bed davenport comprising a fixed frame; spring cushions mounted onsaid fixed frame in spaced relation to each other; an extension frame,supported and guided by said fixed frame; spring cushions, similar tosaid first spring cushions, mounted on said extension frame in spacedrelation to each other and positioned to alternate with the first springcushions; means securing the rear edges of the tops of all said firstspring cushions together and to said fixed frame; and means, secured tosaid extension frame, and lying over said first spring cushions, andbridging the space therebetween when said extension frame is in extendedposition.

6. In a bed davenport, a fixed frame having horizontal end rails; anextension frame mounted on said end rails and adapted to he slid thereoninto extended position; an upward extending metal glider secured to thefront end of the end rail of said fixed frame, and engaging the underside of the extension frame to reduce the friction thereof on the fixedframe; a downward extending metal glider secured to the extension frameand engaging the upper side of the end rail of said fixed frame, toreduce the friction of said extension frame on the fixed frame; a pairof complementary notches, one in the under side of said extension frameand adap ted to engage the glider on the end rail, and the other in theupper side of said end rail and adapted to engage the glider on saidextension frame, said gliders and notches being positioned tosimultaneously engage each other, whereby the extension frame is latchedin its extended position; a spring actuated roller mounted in said fixedframe; and means connecting saidroller to said extension frame, wherebysaid extension frame is pulled towards its closed position when saidgliders are out of engagement with said notches.

OLE STOLTENBERG.

